DR Strings Hi-Beam - Extra Long Scale Stainless Steel Round Core 5 String 45-125 HI-BEAM Stainless Steel 5-String Bass Strings X-Long Scale (45-65-85-105-125) Hi-Beam stainless steel bass strings are round wound and constructed upon a round core, which is unique in the industry Hi-Beams require much more time, care, and extra steps to make than other bass strings The extra effort DR expends making Hi-Beams results in a bass string that is highly flexible, musically bright (not harshly bright) and renowned for durability, unusually long life, consistency, and string-to-string balance They don't eat your frets